#B37040
Closest named color: Clay Brown (#B2713D). oklch(60.8% 0.106 54.8), rgb(179, 112, 64).
Aa
Black text reads best on this color (5.30:1).
About this color
#B37040 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.106 and its hue 55°. Its hue sits on the warm side of the wheel. The nearest named color is Clay Brown (#B2713D), ΔE 0.005 away. Black text reads best on it, at 5.30:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.106) |
| Temperature | warm |
| Nearest name | Clay Brown (#B2713D) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #B37040 |
| RGB | rgb(179, 112, 64) |
| HSL | hsl(25, 47%, 48%) |
| OKLCH | oklch(60.8% 0.106 54.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #B37040 | 3.95:1 | AA large text | Lc -72.2 | Content text, not long reading |
| Black text on #B37040 | 5.30:1 | AA | Lc 37.4 | Non-text elements, placeholder text |
| #B37040 text on white | 3.95:1 | AA large text | Lc 66.7 | Content text, not long reading |
| #B37040 text on black | 5.30:1 | AA | Lc -35.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F2E7E1
oklch(93.5% 0.014 50.8)
-
Step 200
200
#E9D5C8
oklch(88.6% 0.028 55.3)
-
Step 300
300
#DCB8A1
oklch(80.8% 0.052 54.4)
-
Step 400
400
#C9936E
oklch(70.7% 0.083 55.4)
-
Step 500
500 (this color)
#B37040
oklch(60.8% 0.106 54.8)
-
Step 600
600
#A65F27
oklch(55.7% 0.115 55.3)
-
Step 700
700
#8E4E1A
oklch(49.2% 0.107 55.1)
-
Step 800
800
#734018
oklch(42.6% 0.088 55.2)
-
Step 900
900
#5D371A
oklch(37.7% 0.069 56)
-
Step 950
950
#372010
oklch(26.9% 0.044 54.5)
#B37040 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #83773B | 0.084 |
| Deuteranopia (no green cones) | #938640 | 0.076 |
| Tritanopia (no blue cones) | #C36265 | 0.072 |
| Achromatopsia (no color) | #808080 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B37040
#B37040
oklch(60.8% 0.106 54.8)
- #358CB9
#358CB9
oklch(60.8% 0.106 235.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #B37040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clay Brown #B2713D ΔE 0.005
- Leather #AC7434 ΔE 0.022
- Adobe #BD6C48 ΔE 0.024
- Tiger's Eye #BC6C25 ΔE 0.025
- Clay #B66A50 ΔE 0.028
- Copper #B66325 ΔE 0.032
- Tan Brown #AB7E4C ΔE 0.035
- Brown Orange #B96902 ΔE 0.036
Use #B37040 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.